SECURITY-ENSURING APPARATUS HAVING AN OPERATIONAL GUIDANCE FUNCTION

The alarm system includes several emergency sensors situated in the house of office which is to be protected. The sensors may detect intrusion, fire, etc., and are connected to a battery operated detection system. This and a security control unit in the protected zone are linked by a radio communication link via aerials and via a transmission line to a central station. The control station includes a radio receiver and also display which may use lamps, or a cathode ray tube to display an appropriate message indicating the nature and location of the emergency.